[Solved] Find the error in the following code:class Test { void display() { this(); } } — Ans: this() cannot be used to call methods | Java

Java - Constructors

Find the error in the following code:

class Test {
  void display() {
    this();
  }
}

A<code>this()</code> cannot be used to call methods

BMissing return type for display method

CCannot use <code>this</code> inside instance methods

DNo error, code is correct

Step-by-Step Solution

Solution:

Step 1: Understand this() usage
this() is used only to call another constructor, not methods.
Step 2: Identify misuse in method
Calling this() inside a method causes a compile-time error.
Final Answer:
this() cannot be used to call methods -> Option A
Quick Check:
this() = constructor call only [OK]

Quick Trick: Use this() only in constructors [OK]

Common Mistakes:

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